OBJECTIVES: To assess the efficacy and safety of intravenous immunoglobulin (IVIG) 10% (Panzyga® ), a novel human normal IVIG 10%, in patients with chronic immune thrombocytopenia (ITP). BACKGROUND: First-line treatment options in ITP include IVIGs. METHODS: In this prospective, open-label, non-controlled, multicentre, phase III study, patients received a daily dose of IVIG 10% (1 g kg-1 body weight) for two consecutive days. The primary end point was clinical response rate; secondary end points included alternate response definitions, time to response, response duration, platelet counts, regression of bleeding and safety. RESULTS: Forty patients were enrolled (57·5% male, mean age 36·7 years); the full analysis set comprised 36 patients. A clinical response was seen for 29 of 36 patients (80·6%). Median time to response and response duration was 2 days and 14 days, respectively. IVIG 10% was well tolerated at a maximum infusion rate of 8 mg (kg min)-1 in all but one patient; adverse events were mainly mild to moderate in severity, and the most frequent was headache (42·5%). CONCLUSION: IVIG 10% is well tolerated even at a high infusion speed and induces a rapid platelet count increase, thus decreasing the bleeding rate and the severity of bleeding events. TRIAL REGISTRY: ClinicalTrials.gov record: NCT01349790.

• MeSH
• chronická nemoc MeSH
• dospělí MeSH
• idiopatická trombocytopenická purpura krev   farmakoterapie   MeSH
• imunoglobulin G aplikace a dávkování   škodlivé účinky   MeSH
• intravenózní imunoglobuliny aplikace a dávkování   škodlivé účinky   MeSH
• lidé středního věku MeSH
• lidé MeSH
• mladiství MeSH
• počet trombocytů MeSH
• prospektivní studie MeSH
• senioři MeSH
• Check Tag
• dospělí MeSH
• lidé středního věku MeSH
• lidé MeSH
• mladiství MeSH
• mužské pohlaví MeSH
• senioři MeSH
• ženské pohlaví MeSH
• Publikační typ
• časopisecké články MeSH
• klinické zkoušky, fáze III MeSH
• multicentrická studie MeSH

Histone deacylase 11 and human sirtuins are able to remove fatty acid-derived acyl moieties from the ε-amino group of lysine residues. Specific substrates are needed for investigating the biological functions of these enzymes. Additionally, appropriate screening systems are required for identification of modulators of enzymatic activities of HDAC11 and sirtuins. We designed and synthesized a set of activity probes by incorporation of a thioamide quencher unit into the fatty acid-derived acyl chain and a fluorophore in the peptide sequence. Systematic variation of both fluorophore and quencher position resulted "super-substrates" with catalytic constants of up to 15,000,000 M-1s-1 for human sirtuin 2 (Sirt2) enabling measurements using enzyme concentrations down to 100 pM in microtiter plate-based screening formats. It could be demonstrated that the stalled intermediate formed by the reaction of Sirt2-bound thiomyristoylated peptide and NAD+ has IC50 values below 200 pM.

• MeSH
• fluorescenční barviva chemie   farmakologie   MeSH
• fotochemické procesy MeSH
• histondeacetylasy chemie   genetika   metabolismus   MeSH
• lidé MeSH
• molekulární struktura MeSH
• pozitronová emisní tomografie * MeSH
• sirtuiny antagonisté a inhibitory   chemie   metabolismus   MeSH
• thioamidy chemie   farmakologie   MeSH
• transport elektronů MeSH
• Check Tag
• lidé MeSH
• Publikační typ
• časopisecké články MeSH
• práce podpořená grantem MeSH